Home / 215,895.96-297,926.46-120,398.04

Finding the Fourth Proportional to 215,895.96, 297,926.46 and 120,398.04

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Solution

The fourth proportional to 215,895.96, 297,926.46 and 120,398.04 is: 166,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,895.96 : 297,926.46 = 120,398.04 : x
  2. Step 2: Convert to fraction form
    215,895.96/297,926.46 = 120,398.04/x
  3. Step 3: Cross multiply
    215,895.96x = 297,926.46 × 120,398.04
  4. Step 4: Simplify right side
    215,895.96x = 35,869,761,848.14
  5. Step 5: Solve for x
    x = 35,869,761,848.14/215,895.96
  6. Step 6: Final answer
    x = 166,143.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.